Investigating the effects of different cationic charge flocculation polymers on municipal wastewater sludge dewatering

Author:

Abrahams Megan1,Aziz Mujahid1,Kasongo Godwill1

Affiliation:

1. Environmental Engineering Research Group (EnvERG), Faculty of Engineering and the Built Environment, Department of Chemical Engineering, Cape Peninsula University of Technology (CPUT), Bellville 7435, Cape Town, South Africa

Abstract

Abstract The minimization of sludge produced by municipal wastewater treatment plants (MWWTPs) is critical as its handling accounts for approximately 50% of the total operating cost. The challenges in predicting dewatering performance can be overcome by optimizing the sludge treatment process, especially conditioning and dewatering. This study aimed to investigate sludge dewaterability at four different MWWTPs, using a gravity drainage test unit and a bench-scale press. The effect of differently treated effluent used as a solvent to mix the flocculation polymers was observed during dewatering. The membrane bioreactor (MBR) treated effluent yielded the highest filtrate volume in the lowest amount of time, with the least polymer flocculant dosage. The Box Behnken Design model fitted the data and proved a relationship between polymer dosage, cake solids concentration, and cake height during the bench-scale press tests.

Publisher

IWA Publishing

Subject

Water Science and Technology

Reference19 articles.

1. Exclusion of estrogenic and androgenic steroid hormones from municipal membrane bioreactor wastewater using UF/NF/RO membranes for water reuse application;Membranes,2020

2. Sludge de-watering;International Paperworld IPW,2005

3. Simultaneous nitritation-denitritation for the treatment of high-strength nitrogen in hypersaline wastewater by aerobic granular sludge;Water Research,2016

4. Preparation of organic polymers;SNF Floerger,2012

5. Gravity drainage of activated sludge: new experimental method and considerations of settling velocity, specific cake resistance and cake compressibility;Water Research,2011

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